This page is the detailed, release-by-release companion to Standards: Conversational Avatar Communication: the 3GPP work items and Change Requests behind each release. See that page for the full specification list and current scope.
At a glance
- Release 20: work item FS_Avatar_Ph2_MED; 1 change request.
- Release 19: work item FS_AVATAR; 2 change requests.
Work items as listed in the 3GPP work plan of 28 September 2026. Change requests are the ones implemented in a version, as recorded in the 3GPP Change Request database of 25 September 2026; versions without a change request are from the change history of TR 26.813 V20.0.0.
Scope of this page
- Specifications covered: TR 26.813.
- Shared specifications whose change histories cover every feature of the 5G system and are not reproduced (see the specifications themselves): TS 26.114, TS 26.506, TR 26.928, TS 26.250, TS 26.251, TS 26.252, TS 26.253, TS 26.254, TS 26.255, TS 26.256, TS 26.258.
- Work items: those that name one of the specifications covered as impacted in the work plan.
- Type: Study where the acronym starts with FS_ or the title starts with "Study", Normative otherwise.
- ISO/IEC 23090-39, ISO/IEC 23090-14 and its Amendment 2 are ISO/IEC specifications whose stage history was not obtained (unverified: could not obtain the ISO catalogue pages, HTTP 403 on 9 October 2026), and draft-ietf-avtcore-rtp-avatar is an IETF draft not covered here.
Release 20
| Work item | Title | Type | Specifications | Status | WID |
|---|---|---|---|---|---|
| FS_Avatar_Ph2_MED | Study on Avatar communication Phase 2 | Study | TR 26.813 | Complete, Sep 2026 | SP-251663 |
| Specification | Version | CR | Subject | Work item |
|---|---|---|---|---|
| TR 26.813 | 20.0.0 | 0002 | [FS_avatar_ph2_MED] Consolidated CR | FS_Avatar_Ph2_MED |
Release 19
| Work item | Title | Type | Specifications | Status | WID |
|---|---|---|---|---|---|
| FS_AVATAR | Study of Avatars in Real-Time Communication Services | Study | TR 26.813 | Complete, Mar 2025 | SP-230544 |
| Specification | Version | CR | Subject | Work item |
|---|---|---|---|---|
| TR 26.813 | 19.0.0 | Version 19.0.0 created by MCC upon approval in TSG SA#107 | ||
| TR 26.813 | 19.1.0 | 0001 | Editorial corrections and increasing readability of text in Figures | FS_AVATAR |
| TR 26.813 | 19.2.0 | 0003 | Corrective CR for 26.813 | FS_AVATAR |
TR 26.813 before change control
31 versions before approval
The Foreword of the specification defines the first digit of the version: 1 means presented to TSG for information, 2 means presented to TSG for approval, and 3 or greater indicates a TSG approved document under change control. The change history lists the versions before approval as follows.
| Date | Meeting | TDoc | Subject | Version |
|---|---|---|---|---|
| 25/8/2023 | 125 | Initial draft of the TR | 0.1.0 | |
| 24/10/2023 | post 125 | S4aV230059 | Added Use Case 5 | 0.1.5 |
| 24/10/2023 | post 125 | S4aV230060 | Updated Use Case 4 | 0.1.5 |
| 17/11/2023 | 126 | S4-231877 | MPEG reference avatar | 0.2.0 |
| 17/11/2023 | 126 | S4-232033 | Avatar reference model | 0.2.0 |
| 17/11/2023 | 126 | S4-231838 | Updates after adhoc calls | 0.2.0 |
| 17/11/2023 | 126 | S4-232024 | Updates to use cases | 0.2.0 |
| 17/11/2023 | 126 | S4-232034 | Updates to use cases | 0.2.0 |
| 17/11/2023 | 126 | S4-231650 | Updates to use cases | 0.2.0 |
| 01/02/2024 | 127 | S4-240079 | Updates on Reference Architecture | 0.3.0 |
| 01/02/2024 | 127 | S4-240433 | Avatar reference architecture details | 0.3.1 |
| 12/04/2024 | 127-e | S4aV230124 | Additional sets of facial landmarks | 0.4.0 |
| 23/05/2024 | 128 | S4-240928 | AVATAR-related features in glTF 2.0 and MPEG-I Scene Description | 0.5.0 |
| 23/05/2024 | 128 | S4-241108 | Morph Target Animation | 0.5.0 |
| 23/05/2024 | 128 | S4-241313 | Definitions and reference architecture updates | 0.5.0 |
| 23/08/2024 | 129-e | S4-241686 | Reference Architecture Mapping to Non-IMS Services | 0.6.0 |
| 23/08/2024 | 129-e | S4-241687 | MPEG Avatar Representation Format | 0.6.0 |
| 23/08/2024 | 129-e | S4-241743 | Mesh-based avatar protection | 0.6.0 |
| 22/11/2024 | 130 | S4-242194 | pCR on Avatar Representation of Avatar Properties | 0.8.0 |
| 03/12/2024 | SA#106 | SP-241755 | Version created by MCC to present to TSG SA for information | 1.0.0 |
| 21/02/2025 | 131 | S4-250096 | [FS_AVATAR] Updated TR 26.813 | 1.1.0 |
| 21/02/2025 | 131 | S4-250362 | [FS_AVATAR] Proposed conclusions for the Avatar TR | 1.1.0 |
| 21/02/2025 | 131 | S4-250287 | [FS_AVATAR] Avatar Management | 1.1.0 |
| 21/02/2025 | 131 | S4-250288 | [FS_AVATAR] Joint and Blend shape Animation | 1.1.0 |
| 21/02/2025 | 131 | S4-250358 | [FS_AVATAR] pCR on IMS architecture mapping | 1.1.0 |
| 21/02/2025 | 131 | S4-250359 | [FS_AVATAR] pCR on IMS call flow | 1.1.0 |
| 21/02/2025 | 131 | S4-250360 | [FS_AVATAR] pCR on reference architecture and procedures | 1.1.0 |
| 21/02/2025 | 131 | S4-250195 | [FS_AVATAR] Pseudo-CR on MPEG Avatar Representation Format | 1.1.0 |
| 21/02/2025 | 131 | S4-250227 | pCR Metahuman representation format | 1.1.0 |
| 21/02/2025 | 131 | S4-250228 | pCR VRM representation format | 1.1.0 |
| 03-2025 | SA#107 | SP-250288 | Version 2.0.0 created by MCC for presentation to TSG SA#107 | 2.0.0 |